He has been admitted to Integris Hospital where he is undergoing tests to determine the problem.
Williamson said he suffered additional episodes at the hospital and has been battling nausea since arriving at Integris.
The councilman said a CAT scan and MRI turned out normal, but doctors are doing additional testing before ruling out a mini stroke. He is also being medically treated as a stroke victim. He suffered such a mini stroke last year while working on a project out-of-state for his Piedmont Glass Company.
Updates will be posted as they become available.